NaOH + CO2 = Na2CO3 + H2O

Balanced Chemical Equation – Solution

2NaOH + CO2 → Na2CO3 + H2O

The coefficients show the number of particles (atoms or molecules), and the indices show the number of atoms that make up the molecule. New substances are formed as a result of the rearrangement of the original atoms. As a result of a chemical reaction, atoms of chemical elements do not disappear anywhere and new ones do not appear, their number remains unchanged – this follows from the law of conservation of mass of substances.

Chemical Reaction Information

This is an acid-base reaction (neutralization): NaOH is a base, CO2 is an acid.

Sodium Hydroxide + Carbon Dioxide = Natrite + Water

Reaction Type

Double Displacement (Metathesis)

Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.



  • Names: Sodium hydroxide, LyeSoda lye, Sodium hydrate, Caustic soda, White causticLye [Sodium hydroxide].
  • Appearance: White hygroscopic solid in various forms; White, waxy, opaque crystals; Colorless to white, odorless solid.


  • Names: Carbon dioxide.
  • Appearance: Colorless gas.


Na2CO3 – Sodium carbonate

  • Other names: Soda ash.
  • Appearance: White solid, hygroscopic.

H2O – Water, oxidane

  • Other names: Water (H2O), Hydrogen oxide, Hydrogen hydroxide.
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas.
Similar Examples of Equalizing a Chemical Reaction
NaOH + CO2 → H2O + Na2CO3 + NaHCO3
NaOH + CO2 → H2O + Na2CO3
NaOH + CO2 → Na2CO3H2O
NaOH + CO2 → Na2CO3 + HOH
NaOH + CO2 → Na2O + C(OH)4
NaOH + CO2 → NaHCO3

Alexander Stephenson

Candidate of Chemical Sciences, editor-in-chief of Lecturer at several international online schools, member of the jury of chemistry competitions and author of scientific articles.

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